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Disconnect negative battery cable. Locate PCM. See
PCM LOCATION table. Unlock 28-pin PCM harness connector and
disconnect. Remove bolt from 80-pin PCM harness connector and
disconnect. Remove PCM mounting bolts and remove PCM. To install,
reverse removal procedure. Tighten PCM mounting bolts to 80 INCH lbs.
(9 N.m). Tighten PCM harness connector bolt to 71 INCH lbs. (8 N.m).
Program replacement PCM using appropriate equipment and latest
software. See COMPUTER RELEARN PROCEDURES article in GENERAL
INFORMATION.
Removal & Installation (2.2L & 2.4L - "J" & "N" Bodies)
Turn ignition off. Disconnect negative battery cable. Locate
PCM. See PCM LOCATION table. Remove any necessary components to gain
access to PCM. Disconnect harness connectors from PCM. Remove PCM
mounting bolts (if equipped). Remove PCM. To install, reverse removal
procedure. Transfer any necessary components (i.e., knock sensor
module, etc.) to new PCM before installation. Program replacement PCM
using appropriate equipment and latest software. See COMPUTER RELEARN
PROCEDURES article in GENERAL INFORMATION.
Removal & Installation (2.2L, 3.0L, 3.1L, 3.4L, 3.5L, 3.8L,
4.0L, 4.6L & 5.7L)
Turn ignition off. Disconnect negative battery cable. Locate
PCM. See PCM LOCATION table. Remove any necessary components to gain
access to PCM. Disconnect harness connectors from PCM. Remove PCM
mounting bolts (if equipped). Remove PCM. To install, reverse removal
procedure. Transfer any necessary components (i.e., knock sensor
module, etc.) to new PCM before installation. Program replacement PCM
using appropriate equipment and latest software. See COMPUTER RELEARN
PROCEDURES article in GENERAL INFORMATION.
PCM LOCATION
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Application
1.3L
..............................................
1.8L
.................
1.9L
........................
2.2L & 2.4L (Cavalier & Sunfire)
2.2L (Saturn)
.....................................
2.4L (Alero & Grand Am)
3.0L (Catera)
...............................
3.0L (Saturn)
.......................
3.1L (Century & Grand Prix)
3.1L (Malibu)
........................
3.1L (Lumina)
..............................
3.4L (Alero & Grand Am)
3.4L (Impala & Monte Carlo)
3.5L
........................................
3.8L (Bonneville, Grand Prix,
LeSabre, Park Avenue & Regal)
3.8L (Camaro & Firebird)
3.8L (Impala & Monte Carlo)
Under Instrument Panel, Behind Center Console
In Engine Compartment, Next To Battery
.........
..............
Under Left Side Of Instrument
Mounted On Left Rear Of Engine
.................
Compartment, In Air Cleaner Assembly
Under Left Side Of Instrument
Compartment, Forward Of Strut Tower
..............
Under Left Side Of Instrument
................
Compartment, In Air Cleaner Assembly
Compartment, In Air Cleaner Assembly
..............
Compartment, In Air Cleaner Assembly
...................
Compartment, Rear Of Wheelhouse
................
Behind Glove Box
Inside Right Front Fender
Behind Glove Box
Panel, Near Steering Column
On Left Side Of Engine
Compartment, In ECM Housing
On Left Side Of Engine
Panel, Near Steering Column
On Right Side Of Engine
Panel, Near Steering Column
On Right Side Of Engine
On Left Side Of Engine
On Left Side Of Engine
On Right Side Of Engine
On Right Side Of Engine
Location
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